ST. LOUIS – The St. Louis Rams traded both of their sixth-round picks to the Houston Texans and concluded their draft by selecting Vanderbilt running back Zac Stacy in the fifth round.

The 5-8, 216-pound Stacy was third in the SEC with 1,141 yards rushing as a senior with 10 touchdowns. He's the school's only player to rush for 1,000 yards in consecutive seasons and holds school career records of 3,143 yards and 30 touchdowns.

The Rams need depth at running back after losing Steven Jackson in free agency, leaving them with a pair of second-year players in Daryl Richardson and Isaiah Pead. The burly Stacy could help in short-yardage situations.